.\" -*- nroff -*-
.\" Copyright 2010 Cisco Systems, Inc.  All rights reserved.
.\" Copyright 2006-2008 Sun Microsystems, Inc.
.\" Copyright (c) 1996 Thinking Machines Corporation
.\" $COPYRIGHT$
.TH MPI_Win_call_errhandler 3 "Jun 10, 2020" "4.0.4" "Open MPI"

.SH NAME
\fBMPI_Win_call_errhandler\fP \- Passes the supplied error code to the
error handler assigned to a window

.SH SYNTAX
.ft R

.SH C Syntax
.nf
#include <mpi.h>
int MPI_Win_call_errhandler(MPI_Win \fIwin\fP, int \fIerrorcode\fP)

.fi
.SH INPUT PARAMETERS
.ft R
.TP 1.4i
win
Window with error handler (handle).
.ft R
.TP 1.4i
errorcode
MPI error code (integer).

.SH OUTPUT PARAMETER
.ft R
.TP 1.4i
IERROR
Fortran only: Error status (integer).

.SH DESCRIPTION
.ft R
This function invokes the error handler assigned to the window
\fIwin\fP with the supplied error code \fIerrorcode\fP. If the error
handler was successfully called, the process is not aborted, and the
error handler returns, this function returns MPI_SUCCESS.

.SH NOTES
.ft R
Users should note that the default error handler is
MPI_ERRORS_ARE_FATAL. Thus, calling this function will abort the
window processes if the default error handler has not been changed for
this window.

.SH ERRORS
.ft R
Almost all MPI routines return an error value; C routines as
the value of the function and Fortran routines in the last argument. C++
functions do not return errors. If the default error handler is set to
MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism
will be used to throw an MPI::Exception object.
.sp
See the MPI man page for a full list of MPI error codes.

.SH SEE ALSO
.ft R
.nf
MPI_Win_create_errhandler
MPI_Win_set_errhandler

